Trump's EPA looks to duck tighter pollution standards for trucks

The U.S. Environmental Protection Agency has asked a federal court to put a 90-day pause on a lawsuit while the agency considers whether it should continue to defend its own emissions standards for heavy-duty trucks. In addition to improving fuel efficiency, the strengthened standards, finalized last year, require truck makers to cut their carbon dioxide emissions by 9 percent by 2027. The Trump administration has also requested more time to reconsider and possibly rescind separate emissions standards for cars and passenger trucks.